PUMA Sac PUMA Challenger Duffel Bag S 076620 01 Puma Black AMI’s debut collaboration puts a modern spin on streetwear. These blue basic shorts are a hybrid between elevated and slouchy with their casual fit and formal pintuck detailing. They’re made sustainably from recycled polyester and cotton and come equipped with an adjustable drawstring waist and the duo's joint logo patch at one thigh.